[Discuss] newbie on registered protocols

[GuruJ]

John Bartlett wrote:
 > Forgive the question with the (probably) obvious answer, but how can I
 > persuade Firefox to go to my email client (Ximian evolution) when I
 > click on an e address? I get the error "Mailto is not a registered
 > protocol". I have also had another similar error but can't remember what
 > it was now. Maybe if I can fix one it will do all...

Unless it was recently added to the Preferences panel, you'll probably 
have to add it to the preferences list directly.  The relevant options 
should be:

   network.protocol-handler.external.mailto   (set to 'true')
   network.protocol-handler.app.mailto        (set to a shell script, 
eg. "/usr/local/bin/evolution.sh");

You have three options for setting these preferences:

(1) Load Preferential (http://preferential.mozdev.org) and click Tools 
-> Advanced Preferences (DISCLAIMER: this is my project ;)
(2) Use the 'about:config' interface - type this URL into your browser 
and hit ENTER to access
(3) Add entries to your user.js as follows and restart FireFox:

   user_pref("network.protocol-handler.external.mailto", true);
   user_pref("network.protocol-handler.app.mailto", 
"/usr/local/bin/evolution.sh");

 > Also, how can I force Firefox to open another tab instead of another
 > window?

Try playing around with these preferences:

   browser.tabs.opentabfor.bookmarks
   browser.tabs.opentabfor.middleclick
   browser.tabs.opentabfor.urlbar
   browser.tabs.opentabfor.windowopen

Hope this helps,

-- GuruJ.